Non-heat-conducting receptacle.



G. 0. WILSON.

NON-HEAT uounuo'rme REGEPTAOLE.

APPLICATION FILED AUG. 15, 1912.

Patented June 9, 1914.

3 SHEETS-EH33! 1.

AM J) M4170 C. 0. WILSON.

NON-HEAT CONDUCTING REGEPTAGLE.

APPLICATION FILED AUG.15| 1912.

Patented June 9,1914.

3 SHEETSSHEET 2.

Inventor: LMJWL b w J M G. 0. WILSON.

NON-HEAT CONDUCTING REGEPTAGLE.

APPLICATION FILED AUG.15, 1912.

3 SHEETS-SHEET 3.

Patented June 9, 1914.

Inventor: Qlflmk in LU y M VU AMA Atty ting CLARENCE C. WILSON,

OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE WARNER BROTHERS COMPANY, OFBRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- NEGTICUT.

NON-HEAT-CONDUCTI'NG RECEPTACLE.

Specification of Letters Patent.

Patented June 9, 1914.

Application filed August 15, 1912. Serial No. 715,194.

To all whom it may concern:

Be it known that I, CLARENCE C. WILSON, a citizen of the United Statesof America, resident of the city of Bridgeport, county of Fairfield,State of Connecticut, have made a new and useful Improvement inNon-Heat- Conducting Receptacles, of which the following is aspecification.

My invention relates to non-heat-conducting receptacles in which airchambers are provided in the walls of the receptacle. The receptacle andthe Walls of the air chambers may be made of any suitable materialalthough I prefer to make them of paper box board. The receptacle may beplaced on the market in made-up form or in knock-down style. I prefer tomake both the receptacle and the air chambers in knock-down orcollapsible style, as such may be easily packed and transported.

The object of the invention is to provide a non-heat-conductingreceptacle which may be used in connection with the preservation offood-stuffs whether hot or cold,-in the one case the air chambers retainthe heat in the contents of the receptacle, and in the other case theair chambers exclude the heat from the contents of the receptacle.

In the following I have described in connection with the accompanyingdrawin s, several. forms of structures illustrating t e application ofmy invention, the features thereof being more particularly pointed outhereinafter in the claims.

In the drawings, Figure 1 is a blank of a knock-down box adapted to formeither the inner or outer container of the receptacle, and Fig. 2 is aperspective view of the same, folded and partly open. Fig. 3 is a planview of a blank showing the method 'of cutand scoring for formingan airchamber. Fig. 4 is a perspective view showing the side air chamber ofthe receptacle formed from the blank shown in Fig. 3, left partly opento show the construction. Fig. 5 is a plan view of a blank for formingan air chamber at. the. top or bottom of the receptacle and showing themethod of cutting and scoring the same. Fig. 6 is a cross-sectionshowing the inner and outer containers and the air chambers assembled.Fig. 7 is a plan view of a modification showing a blank for forming aplurality of air chambers and the method of cutting and scoring thesame. Fig. Sis a cross-section of the air chambers made by forming upthe blank shown in Fig. 7. Fig. 9 is a perspective view of the airchambers formed up from. the blank shown in Fig. 7 and comprising thesides of the receptacle, the same being left partly open to show theconstruction. Fig. 10 is a perspective view of a double air chamber forforming the top or bottom of the receptacle. Fig. 11 is a cross-sectionof the structure shown in Figs. 7 to 10, assembled in a complete formand showing the innor and outer containers, together with the airchambers surrounding the same.

Similar letters of reference indicate similar parts throughout theseveral views.

a indicates the outer container, 1) the cover therefor, c the innercontainer and cl the cover therefor. The outer container may be made ofany suitable material such as pasteboard, strawboard, metal, glass,basketweaving, etc. The inner container inay'also be of any desiredcharacter of material or may be entirely omitted.

The blank shown in Fig. 3 comprises side walls a and f and top andbottom walls 9 and h. The scorings 2', 2' indicate where the blank is tobe folded lengthwise to form the side walls and top and bottomrespectively. j indicates a flap adjacent the portion g adapted to beturned up and pasted or otherwise secured against the inside of the sidewall f as shown in Fig. 4. la indicates a flap at the end of the portionf adapted to be pasted or otherwise secured to the 0utside of theportion f when the structure is formed up, as shown in Fig.4. Z, Zindicate vertical scorings on the blank shown in Fig. 3 showing wherethe blank is to be folded to form the outer corners of the airchamheristructure. m, m indicate cut-out portions in the blank toprovide for the forming of the inner corners of the blank when folded asshown in Fig. 4.

Fig. 5 indicates a blank having scorings n, n for folding the flaps 0, 0upward so as to provide for the top and bottom air chambers of thereceptacle, the cut-out portions 72, 7) of the blank shown in Fig. 5permitting the close juxtaposition of the flaps 0 at the corners whenturned upward.

In assembling the structure shown in Figs. 3 to 6 inclusive, the sideair chamber is formed by folding the blank shown in Fig. 3 as describedso that it assumes the shape shown in Fig. 4. The flap is ispasted orotherwise secured to the outside of the wall f. One of the blanks shownin Fig. 5 is folded as described'and placed in the bot,- tom of theouter container at in inverted position, as shown in Fig. 6. The airchamber structure shown in Fig. 4 is then placed inside the container,with one of the walls g or h'resting against the bottom air chamber asshown. The inner container 0 may then be filled as desired, covered andplaced within the receptacle. Another blank similar to that shown inFig. 5 is then placed on top of the inner container and resting againstthe upper wall of-the side air chamber, and the cover .7) put in place.It is obvious that by the means described the inner container, or ifthat is omitted, the inner space of the receptacle, is entirelysurrounded by. air chambers.

In Figs. 7 to 11 inclusive, I have shown a modification of the structureshown in Figs. 3 to 6 inclusive. In the structure shown in Figs. 7 to 11inclusive, the blank, Fig.7, is provided with portions 6, f, and fadapted to form the inner, outer and middle walls of the airchamberstructure. g is a portion adapted to form the bottom wall of the airchamber and 71. is a portion adapted to form the top wall thereof. 9 isadapted to form the top wall of the inner partition and k the bottomthereof. is is a flap at the end of the part f adapted to be pasted orotherwise secured to outer wall of the portion 1 when the box is formedup. s, sindicate the longitudinal scorings on which the blank is a to befolded lengthwise and t, 23 indicate the vertical scorings to form theouter corners of the air chamber. m, m and m, m"'are cut-out portions toprovide for the lnner corners of the air chambers, m being smaller thanm so that when the box is assembled the ends of the portions e and fopposite each other at either side of cut-out portions m and mrespectively, will come into juxtaposition to form substantially closedcontinuous air cells. WVhen formed up the air chambers assume theposition shown in Fig. 9. The top and bottom air chambers may each bemade of a single'piece folded upon itself as shown in Fig. 10, so

as to form a two-celled air chamber having a spacing wall a, centralwall 1), spacing Wall '0 top w, end wally, bottom m and end wally, theend wall if being pasted or'otherwise secured to spacing wall '0 Inassembling the structure shown in Figs.

' 7 to 11 inclusive, the side double air chambers are formed by foldingthe blank shown in Fig. 7 as described so that it assumes the shapeshown in Fig. 9. The flap 72- is pasted or otherwise secured to wall itand flap g is pasted or otherwise secured to wall 9.

Flap is is then pasted or otherwise secured to the outside of wall f asindicated in Fig. 9. The top or bottom air chamber structures are formedup as heretofore described. One of the top or bottom structures is thenplaced in the bottom of the outer container, as shown in Fig. 11, andthe side wall struc ture is inserted in the container so that its bottomwall rests against the top of the air chamber structure in the bottom ofthe container. The inner container 0 may then be filled as desired,covered and placed in the receptacle or, if the inner container 0 beomitted, the material to be preserved is charged direct-1y into thereceptacle, An other air chamber structure similar to that placed at thebottom of the containeris then placed on top resting upon the upper wallof the side wall structure and the cover I) put in place.

It is obvious that by the means described the inner container, or, if

many foods or other materials could be placed a loosely in suchreceptacle without being placed in an inner container. Forits largestuse, however, the outer and inner containers may comprise fo-ldmg orknockdown paste- :board or strawboard boxes, aS shown in Figs;

1 and 2, which in connection with the air chamber structures shown anddescribed,

may, after being. formed up,be foldedOr collapsed into flat position,permit the manufacture of the structure which can be shipped flat andset-: up by the user as desired.

In actual test a non-heat-conducting receptacle, such as is shown inFigs. 3 to 6 inclusive, has been found to keep a pint-of brick ice creamin solid condition for aperiod'of three hours in a-temperature of from75 to 80 F. and a non-heat-conducting receptacle, such as is shown inFigs. 7 to 11' .inclusive, has been found to keep a brick of Neapolitan1ce cream contalnlng Imxed ice and ice cream, one of the mostdiflicultcompounds to preserve in a solid state, in an absolutely solid conditionfor a period of of that time the ice crystallization on the outside ofthe inner container was still visible and there was absolutely noindication of any melting whatever of the contents of said innercontainer. Such structures as have been describedmake it possible toship ice cream for a considerable distance without the necessityofproviding large pails of over four hours and in fact at the expiration Icracked ice which must be returned after use and make it possible topreserve many substances for a considerable period. of time so that theycan be used on picnics, etc. Of course there are many uses for suchreceptacles as I have described in connection with the delivery of othercommodities, such as butter, milk, etc., on which heat has a deleteriouseffect.

\Vhile I have described the use of the re ceptacles in connection withpreserving the contents from the effect of exterior heat, it is obviousthat they are as well adapted for the preserving of a heated materialand preventing the heat therein from being outwardly conducted.

The provision of an air chamber structure such as is shown in eitherFigs. 3 to (3 inclusive or Figs. 7 to 11 inclusive, reduces the numberof pieces of material to a minimum, while forming either a continuoussingle or a continuous double celled air chamber structure entirelysurrounding the sides of the inner receptacle. The top and bottom piecesalso have single or double cells so that the receptacle is entirelysurrounded by air chambers as described. The whole device of either typeis very simple in construction as wellv as in operation.

Of course the air chamber structures may be made so as to haven'lorethan two air spaces within them if desirable in such manner as toconstitute a plural number of air cells, and the air spaces may be ofany thickness required, the thicker the air space the greater the amountof insulation as is obvious.

As the form or shape of either containers or the blanks may be widelyvaried without departing from the spirit of my invention, I do notrestrict myself to the details as shown and described further than thescope. of the appended claimsdemand. It is also obvious that either theinner or outer container or both may be of waterproof material, such aswaxed board or yarnished board for ere ample.

That I claim and desire to secure by Letters Patent is:

1. A non-heat-conducting receptacle, comprising an outer containerhaving air chambers at its top and bottom, and a closed air chamberstructure arranged adjacent to the sides of the container andconstructed of a blank folded to form a continuous closed air cell.'

2. A non-hcat-conducting receptacle, comprising an outer containerhaving air chambers at its top and bottom, and a self-contained closedair chamber structure titted to the shape of the container and arrangedadj acent to but constructed independent of the sides of the container.

3. A non-heat-condncting receptacle, comprising an outer containerhaving air chambers at its top and bottom, and a closed cellularstructure arranged adjacent to the sides of the container and having aplurality of parallel-disposed continuously connecting air chambers.

4. A non-heat-ctmducting receptacle, comprising an outer containerhaving air chambers at its top and bottom, and a closed plural-celledair chamber structure arranged adjacent to the sides of the containerand constructed of a blank folded to form a plurality of continuouslyextending parallel connecting air cells.

5. A. non-heat-condnoting receptacle, comprising an outer container inthe form of a knockdown paper box, having air chambers at its top andbottom in the form of collapsible structures adapted to form air cells,and also having air chambers adjacent the sides of the container in theform of a blank folded to form a collapsible continuously extendingclosed air cell structure including a plurality of connecting airchambers.

(5. In a non-heat-conducting receptacle, a self-contained air chamberstructure in collapsible form, having a series of connecting air cellsjoined together to form a continuous closed air chamber surrounding thesides of the container on the inside.

In testimony whereof I have signed this specification in the presence oftwo subscrib ing witnesses.

CLARENCE C. WILSON.

Witnesses:

Scanner 0. MAsTICK, K. G. Ln Ann.

